Mark D. Gendleman, M.D.
NPI 1457339863ActiveIndividual· Specialist· Evanston, IL
Specialist (M.D.) in Evanston, Illinois, licensed in IL, with an NPI issued in January 2006. 680 Medicare patients in 2024, $176,536 paid; nearly all of their 396 Part D prescriptions were generic (90%).
Overview
| NPI | 1457339863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 5, 2006 |
| Last updated in NPPES | Mar 11, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 036045834 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 680 |
|---|---|
| Services billed | 3,690 across 47 procedure codes |
| Paid by Medicare | $176,536 |
Part D prescriptions in 2024
| Prescriptions (claims) | 396 · 476 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $95,166 |
| Generic share | 90% of claims |
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